A:
Positive:
1 x 110011555 x 220023111 x 100010555 x 200021139 x 79145695 x 158291439 x 76451529 x 7195
Negative:
-1 x -11001155-5 x -2200231-11 x -1000105-55 x -200021-139 x -79145-695 x -15829-1439 x -7645-1529 x -7195
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 11,001,155, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 11,001,155 | |
| -1 | -11,001,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,001,155.
Example:
1 x 11,001,155 = 11,001,155
and
-1 x -11,001,155 = 11,001,155
Notice both answers equal 11,001,155
With that explanation out of the way, let's continue. Next, we take the number 11,001,155 and divide it by 2:
11,001,155 ÷ 2 = 5,500,577.5
If the quotient is a whole number, then 2 and 5,500,577.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 11,001,155 | |
| -1 | -11,001,155 |
Now, we try dividing 11,001,155 by 3:
11,001,155 ÷ 3 = 3,667,051.6667
If the quotient is a whole number, then 3 and 3,667,051.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 11,001,155 | |
| -1 | -11,001,155 |
Let's try dividing by 4:
11,001,155 ÷ 4 = 2,750,288.75
If the quotient is a whole number, then 4 and 2,750,288.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 11,001,155 | |
| -1 | 11,001,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 139 | 695 | 1,439 | 1,529 | 7,195 | 7,645 | 15,829 | 79,145 | 200,021 | 1,000,105 | 2,200,231 | 11,001,155 |
| -1 | -5 | -11 | -55 | -139 | -695 | -1,439 | -1,529 | -7,195 | -7,645 | -15,829 | -79,145 | -200,021 | -1,000,105 | -2,200,231 | -11,001,155 |
Here are some more numbers to try:
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